Finding the Fourth Proportional to 30,840.25, 42,559.61 and 16,693.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,840.25 : 42,559.61 = 16,693.10 : x
2. Step 2: Convert to fraction form
   30,840.25/42,559.61 = 16,693.10/x
3. Step 3: Cross multiply
   30,840.25x = 42,559.61 × 16,693.10
4. Step 4: Simplify right side
   30,840.25x = 710,451,612.89
5. Step 5: Solve for x
   x = 710,451,612.89/30,840.25
6. Step 6: Final answer
   x = 23,036.51